Marbles PS RH+ vs Sum
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Marbles PS RH+
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Try to place all the marbles the their own target destinations at an order, by using their reflections from couple of mirrors. In the game there are 5 different mirrors and a wormhole to make some levels even more exciting. There are 4 sections, every section contains 20 levels and all of them have their own degree of the difficulty which has been prepared carefully. With it's simple gameplay and elegant game structure 80 puzzles for your brain exercise are awaiting. When you finish all the puzzles, the "Philosopher's Stone" level will be unlocked. Have fun.
Sum
This game challenges you to find sums from a grid of numbers before time runs out. It offers multiple modes, from fast-paced challenges to relaxed untimed play, and helps improve mental agility and logic skills.
- Timed addition challenges
- Four distinct game modes
- Offline play supported
- Compete with friends
- Detailed progress statistics
- Sleek user interface
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Introducing 'Sum: Simple Math Puzzle', a captivating and mentally invigorating game that will transform the way you think about basic math. Is there anything more fundamental than addition? Yet how challenging can it be when the clock is ticking, the stakes are high, and you're racing against time? We invite you to step up and find out! At the heart of our game is a simple yet intriguing premise: a 3x3 grid randomly filled with 5 numbers. Your task? Make as many correct sums as possible before time runs out. But it's not all that straightforward. We offer four stimulating game modes, each delivering a unique flavor of fun and intensity: > Classic: Dive into 90 intense seconds of mental agility, where every correct sum you find rewards you with additional time. But be careful - an incorrect sum could cost you precious seconds! > Rush: The adrenaline-packed mode where every second counts. Make as many correct combinations as possible in 90 seconds. There are no time extensions or deductions - only pure, fast-paced fun. > Infinity: Fancy a relaxed, untimed experience to refine your skills or unwind after a long day? Infinity mode lets you play at your own pace, with no time constraints. > Epic: For those who enjoy a good challenge, our Epic mode presents a given sum upfront. Your mission? Find numbers from a filled up grid to form the sum. Same time rules apply! Master the rules of the game - select the sum first, then pick the two numbers that add up to it. A correct combination looks like 20 = 8 + 12 or 20 = 12 + 8, not the other way around! As you ace each level, you'll earn bonus time to help you reach even greater heights. There are plenty of opportunities to earn bonus points, especially in Classic mode. 'Sum: Simple Math Puzzle' also offers: - Various levels of difficulty to keep the challenge fresh. - The chance to compete with friends and establish mathematical dominance. - Offline mode, so you can enjoy our game without internet. - A compact size that won't crowd your device. - A sleek, visually pleasing user interface. - Detailed statistics to help track your progress and improve your performance. Math isn't just about numbers, it's about logic, speed, and fun! 'Sum: Simple Math Puzzle' combines all these aspects into a highly addictive game that will not only entertain but also help enhance your mental agility. It's not just about fun; it's also a brain training exercise scientifically proven to stimulate faster thinking and response. Note: The fun, the challenge, and the benefits are all real. Download 'Sum: Simple Math Puzzle' today and immerse yourself in the most intriguing math-based puzzle game on the App Store. Enjoy! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Marbles PS RH+ at none against Sum's shown. Marbles PS RH+ also leads on iOS requirement (15.0 vs 17.6). Sum's advantage is update cadence (every 3 days vs every 25 months). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Marbles PS RH+ sells 1 one-off in-app purchase and Sum sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Marbles PS RH+ ships an update every 25 months, Sum every 3 days. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.
| Parameter | Marbles PS RH+ | Sum |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 25 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 113 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | RH POZITIF TEKNOLOJI AS | Whimseed Studio Private Limited |
In-app purchases
Marbles PS RH+
- Remove Ads$0.99
Sum
- Monthly Subscription$1.991 Month









